Re: [PATCH] ipv6: Allow non-gateway ECMP for IPv6

On Mon, Apr 30, 2018 at 08:59:10PM -0600, David Ahern wrote:

On 4/30/18 3:15 PM, Thomas Winter wrote:

quoted

It is valid to have static routes where the nexthop
is an interface not an address such as tunnels.
For IPv4 it was possible to use ECMP on these routes
but not for IPv6.

Signed-off-by: Thomas Winter <redacted>
Cc: David Ahern <redacted>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Alexey Kuznetsov <redacted>
Cc: Hideaki YOSHIFUJI <redacted>
---
 include/net/ip6_route.h | 3 +--
 net/ipv6/ip6_fib.c      | 3 ---
 2 files changed, 1 insertion(+), 5 deletions(-)

Interesting. Existing code inserts the dev nexthop as a separate route.

Change looks good to me.

Acked-by: David Ahern <redacted>

Thanks for the Cc, David. I'll need to adjust mlxsw to support this.
Specifically, mlxsw_sp_fib6_rt_can_mp().

BTW, I hit this bug while looking into this:
https://patchwork.ozlabs.org/patch/907050/